#!/usr/bin/env python3
"""Print progress for a human listening trial inside Fenrir TTY or -x mode.

This generates terminal output only; Fenrir owns all tone playback.
"""

import argparse
import time


def main():
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--scroll", action="store_true", help="Print each update on a new line to test scrolling")
    args = parser.parse_args()
    linePrefix = "" if args.scroll else "\r"
    lineEnd = "\n" if args.scroll else ""
    for percentage in range(0, 101, 10):
        filled = percentage // 10
        barText = "#" * filled + " " * (10 - filled)
        print(f"{linePrefix}Download {percentage:3}% [{barText}]", end=lineEnd, flush=True)
        time.sleep(0.2)
    print()
    for spinnerChar in "⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏" * 2:
        print(f"{linePrefix}{spinnerChar} Preparing files", end=lineEnd, flush=True)
        time.sleep(0.25)
    print(linePrefix + "Done." + " " * 20, flush=True)


if __name__ == "__main__":
    main()